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You can use ToolSimulator, an LLM-powered tool simulation framework within Strands Evals, to thoroughly and safely test AI agents that rely on external tools, at scale. Instead of risking live API calls that expose personally identifiable information (PII), trigger unintended actions, or settling for static mocks that …
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All of this sample code is checked in on GitHub at https://github.com/JasperFx/CritterStackSamples/tree/main/Reports. When you develop with Wolverine as your application framework, Wolverine is really trying to push you toward using pure functions for your main message handler or HTTP endpoint methods. Recently, I was …
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In this post, we'll show you how to build a complete omnichannel ordering system using Amazon Bedrock AgentCore, an agentic platform, to build, deploy, and operate highly effective AI agents securely at scale using any framework and foundation model and Amazon Nova 2 Sonic. Link to article: …
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This post was written by external contributors from Touchlab. KMP is a strategic platform In the current competitive landscape, the traditional mobile development model characterized by maintaining independent, duplicated codebases for iOS and Android is no longer a sustainable use of capital. This approach …
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Join Taylor Desseyn and David McCarter live on the Guidance Counselor 2.0 podcast on April 21, 2026, at 9:30 AM CST. They'll discuss strategies for success in the tech job market, insights from McCarter's book "Rock Your Career," and provide valuable advice for preparing for technical interviews. Don't miss …
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On the topic of what happens if an access violation straddles multiple pages, Link to article: https://devblogs.microsoft.com/oldnewthing/20260420-00/?p=112245
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Investing in static code analysis tools might seem straightforward, but finding one that truly fits your team can be tough. Most tools promise the usual benefits: cleaner code, fewer bugs, better security, and more consistency in code reviews. Yet in reality, there’s a big difference between a tool the team embraces …
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Master command pattern best practices in C# including single responsibility commands, proper undo implementation, command validation, and organized architectures. Link to article: https://www.devleader.ca/2026/04/20/command-pattern-best-practices-in-c-code-organization-and-maintainability
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Evaluating recurring date patterns is a common requirement in many applications. Whether you need every day, every Monday at 9 AM, or the last day of each month, you need a reliable way to calculate upcoming occurrences. Meziantou.Framework.Scheduling is a NuGet package that parses and evaluates both CRON expressions …
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Introduction: The Problem The Novo Nordisk Clinical AI team and the ISE group in Microsoft partnered in an engagement that began as a series of data science experiments and gradually evolved into a production capability by "promoting" experimental code into MCP Tools or Agents. Targeting the submission of …
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Welcome to another issue of Dev Leader Weekly! In this issue, I discuss context switching -- why it's unavoidable, how startups and big companies handle it differently, and what you can actually do about it. Link to article: …
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This article shows how to remove the sign-up flow from Entra External ID user flows. This is required because SMS and Phone validation can be abused by bots to run up costs on the tenant. The bots create accounts and start a phone validation or a SMS validation which is charged to the tenant. The […] Link to article: …
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Hyatt deploys ChatGPT Enterprise across its global workforce, using GPT-5.4 and Codex to improve productivity, operations, and guest experiences. Link to article: https://openai.com/index/hyatt-advances-ai-with-chatgpt-enterprise
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Learn how to implement feature slicing in C# without MediatR. Build clean, testable feature handlers using plain classes and ASP.NET Core Minimal APIs. Link to article: https://www.devleader.ca/2026/04/19/feature-slicing-without-mediatr-in-c-plain-handlers-that-actually-work
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String searching is fundamental to modern applications, yet its performance impact is often overlooked. This article explores how common string search patterns can quietly slow down your code—and how small, intentional changes can unlock up to 3× faster execution. Backed by real benchmarks, it shows why paying …
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Master the state design pattern in C# with practical examples showing state transitions, behavior changes, and finite state machine implementations. Link to article: https://www.devleader.ca/2026/04/19/state-design-pattern-in-c-complete-guide-with-examples
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Learn every C# multiline string technique: verbatim @-strings, C# 11 raw string literals with triple quotes, and .NET 7 UTF-8 u8 literals with code examples. Link to article: https://www.devleader.ca/2026/04/18/c-multiline-strings-verbatim-literals-raw-string-literals-and-utf8-literals
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In a previous article available below, I walked through a structured approach to exploring new codebases.An Outside-In Approach to Discover Unknown CodebasesJumping into a new codebase is never easy. It takes time, patience, and often a fair bit of frustration. And when the codebase is legacy — undocumented, Link to …
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Discover when to use command pattern in C# with real decision criteria, use case examples, and guidance on when simpler alternatives work better. Link to article: https://www.devleader.ca/2026/04/18/when-to-use-command-pattern-in-c-decision-guide-with-examples
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I resisted primary constructors for a while. They felt like a shortcut that would cost me later. But after using them across several projects, I'm sold, with one important caveat. Here's what convinced me to switch, and the one pitfall you need to watch out for. Link to article: …
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